firewall

利用verilog实现硬件上的简单的CPU处理系统，并可以处理简单的汇编语言代码。本代码实现的是CPU上的汇编语言的单周期执行。

Digital pre-distortion (DPD) is an advanced digital signal-processing technique that mitigates the effects of power amplifier (PA) nonlinearity in wireless transmitters. DPD plays a key role in providing efficient radio digital front-end (DFE) solutions for 3G/4G basestations and beyond. Modern FPGAs are a promising target platform for the implementation of flexible wireless DFE solutions, including DPD.

通过随机数产生原理进行verilog编程，从而实现FPGA的随机数产生(Through random number generation principle for Verilog programming, so as to achieve the FPGA random number generation)

说明：  FPGA实现基带成型滤波器，升余弦滚降系数，多进制调制(FPGA)

时钟分频代码，PWM产生 RTL 源代码。(clock divider，PWM generator RTL Source Code)

FPGA实现SPI接口的从机功能，接收和发送全双工运行，接收到的数据以八位LED灯显示(FPGA to achieve the SPI interface the machine function, receive and send full-duplex operation, the received data to eight LED lights)

说明：  可以获取各种字符，并在数码管显示出来，非常的靠谱且稳定(Various characters can be acquired and displayed on the digital tube.)

一种实现计算机接口rs232与FPGA通信的基于VHDL语言设计的一段非常简洁的程序(A RS232 computer interface implementation with FPGA-based VHDL language communications designed a very simple procedure)

6位密码锁，密码锁控制器是硬件与软件的结合。根据设计要求，决定以FPGA芯片和VHDL语言设计此电子密码锁(6 locks, the lock controller is a combination of hardware and software. According to design requirements, the decision to the FPGA chip and VHDL design electronic locks)

FPGA上的一个半加器实例程序，通过测试，可以直接运行在fpga开发板上。(One and a half adder example on FPGA program, through the test, can be run directly on the FPGA development board)